Churches are giving an error server-side during world gen:

Empty template pool found from : mostructures:abandoned/village/churches
The path represented by this is: data/mostructures/worldgen/template_pool/abandoned/village/churches
The structure piece with a Jigsaw Block that is targeting an empty pool is: mostructures:abandoned/village/plate/taiga
Most common cause is that there is a typo in this path to the template pool which then points to a non-existent pool.
Please let the mod author know about this so they can double check the path to make sure it is correct.

[03:28:40] [Worker-Main-88/WARN]: Empty or none existent pool: mostructures:abandoned/village/churches